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Neutrons probed two mechanisms proposed to explain what happens when hydrogen gas flows over a cerium oxide (CeO2) catalyst that has been heated in an experimental chamber to different temperatures to change its oxidation state. The first mechanism sugges

Neutron spectroscopy reveals common ‘oxygen sponge’ catalyst soaks up hydrogen too

November 7, 2017

Having the right tool for the job enabled scientists at the Department of Energy’s Oak Ridge National Laboratory and their collaborators to discover that a workhorse catalyst of vehicle exhaust systems—an “oxygen sponge” that can soak up oxygen from air an

How perovskite catalysts are made and treated changes their surface compositions and ultimate product yields. If certain perovskite catalysts of the formula ABO3 are heat-treated, the catalyst’s surface terminates predominantly with A (a rare-earth metal

Researchers customize catalysts to boost product yields, decrease chemical separation costs

October 18, 2017

For some crystalline catalysts, what you see on the surface is not always what you get in the bulk, according to two studies led by the Department of Energy’s Oak Ridge National Laboratory. The investigators discovered that treating a complex

Materials – Cooking up biofuel

August 1, 2017

Using a novel, reusable carbon material derived from old rubber tires, an Oak Ridge National Laboratory-led research team has developed a simple method to convert used cooking oil into biofuel.

Ben Doughty: Finding the right answers

June 26, 2017

No two scientists have the same story about how they ended up in their field. Some people seem to have been born scientists; others develop their love for it as budding minds full of curiosity.

Depicted at left, small nanoparticles stick to segments of polymer chain that are about the same size as the nanoparticles themselves; these interactions produce a polymer nanocomposite that is easier to process because nanoparticles move fast, quickly ma

Small nanoparticles have surprisingly big effects on polymer nanocomposites

March 8, 2017

Polymer nanocomposites mix particles billionths of a meter (nanometers, nm) in diameter with polymers, which are long molecular chains.

Crystallization method offers new option for carbon capture from ambient air

January 9, 2017

Scientists at the Department of Energy’s Oak Ridge National Laboratory have found a simple, reliable process to capture carbon dioxide directly from ambient air, offering a new option for carbon capture and storage strategies to combat global warming.

Materials – Mixed results

November 2, 2016

Scientists have developed a process for mixing unmodified lignin with general-purpose rubber and other components that yields high-performance renewable thermoplastics containing up to 41 percent of lignin content.

Samsung licenses ORNL transparent superhydrophobic glass coatings for electronic devices

September 26, 2016

Samsung Electronics has exclusively licensed optically clear superhydrophobic film technology from the Department of Energy’s Oak Ridge National Laboratory to improve the performance of glass displays on smartphones, tablets and other electronic devices.

ORNL’s Huiyuan Zhu places a sample of boron nitride, or “white graphene,” into a furnace as part of a novel, nontoxic gas exfoliation process to separate 2D nanomaterials.

New nontoxic process promises larger ultrathin sheets of 2D nanomaterials

July 25, 2016

A team of scientists led by the Department of Energy’s Oak Ridge National Laboratory has developed a novel way to produce two-dimensional nanosheets by separating bulk materials with nontoxic liquid nitrogen.

A 3-D printed table was manufactured using 10 percent bamboo fiber, an initial step toward sustainable practices using bio-derived materials

Manufacturing - 3-D printing with bamboo fiber

July 6, 2016

Researchers at Oak Ridge National Laboratory are using bamboo fiber in 3-D printing experiments to determine whether bio-based feedstock materials are feasible in additive manufacturing.